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It'll be fine, but make sure you aren't overspeeding at the top end of the rev range. Getting the revs set with a tacho is the best bet, and unless you really want to lean it out, I'd go 1000 below top to give yourself a bit of leeway when you're running out of fuel, running in different atmospheric/temperature conditions etc.

Went in to add to post and it wouldnt let me. Said I only had 10mins to do so. hmmmm

Warning do not run a little pipe in a muffler cover like in the pic. Some dumb a put it in that way and it burns the piss out of your hand on a flush cut.
I gave it away pos imho and put a husky deflector on the other cover and aimed it like a oem dual port 066 046 cover. Stihl had it right on the DP covers. Lot better and better performance then too.